Use this powerful semi-permanent creme developer with a matching Wella Kolseton Perfect hair color for superior dyeing results. The creme's absorbent HDC activator increases your hair's ability to hold color while maintaining a healthy shine. This creme has a thick, non-drip consistency that offers precision coloring and blending, ·Designed to work with matching Wella Kolseton Perfect hair color products ·Mixes at a 1:2 ratio for semi-permanent color ·Non-drip consistency allows precise coloring ·Absorbent HDC activator helps hair hold and blend color while maintaining shine and hair health ·Rich and thick formation offers better blending options ·White color blends into mixture perfectly